搜索结果: 121-135 共查到“国际动态 动物学”相关记录1160条 . 查询时间(1.889 秒)
The curious case of the disappearing snakes（图）
curious case disappearing snakes
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2020/2/20
A new National Science Foundation-funded study sounds alarm bells about the biodiversity crisis and declining wildlife populations around the world. The results are published in the journal&...
饲养野生动物 遗传后果严重（图）
野生动物 遗传 南非科学杂志
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2020/2/13
科学家近日在《南非科学杂志》上警告说，南非政府决定将包括犀牛、狮子和猎豹等在内的30多种野生物种，列入可通过繁殖和基因研究加以改良的动物名单，这一做法可能会对这些动物的基因多样性造成极大破坏。
Beating the heat in the living wings of butterflies（图）
Beating heat living wings butterflies
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2020/2/20
A new study by Columbia and Harvard scientists has identified the physiological importance of temperatures for butterfly wings to function properly. Contrary to the common belief that butter...
Study reveals evolutionary clues to honeybees' social complexity（图）
evolutionary clues honeybees social complexity
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2020/2/20
The complex social life of honeybees -- with their queens and workers cooperating to produce honey -- is deeply entrenched in the public's imagination. But the majority of the world's more than 20,000...
Unraveling arthropod genomic diversity over 500 million years of evolution（图）
arthropod genomic diversity 500 million years evolution
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2020/2/20
Comparative analyses by scientists at the Swiss Institute of Bioinformatics and other institutions of 76 arthropod species spanning 500 million years of evolution reveal genomic changes that point to ...
Scientists unlock mysteries of grasshoppers' response to gravity（图）
Scientists mysteries grasshoppers response gravity
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2020/1/19
Despite the importance of insects as agricultural pests, disease vectors, and food web components, the understanding of many aspects of their basic physiology is minimal.Arizona State University ...
Bees' movements may lead to new swimming, flying robots（图）
Bees movements new swimming flying robots
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2020/1/21
Walking on Caltech's campus, engineer Chris Roh happened to see a bee stuck in the water of Millikan Pond. Although it was a common sight, it led Roh and his colleague Mory Gharib to a discovery about...
Chemical defenses allow some moths to escape predatory bats（图）
Chemical defenses moths escape predatory bats
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2020/1/21
A new NSF-supported study published in Frontiers in Ecology and Evolution reveals that less appetizing moths are more nonchalant when attacked by bats, whereas more palat...
Connecting the prehistoric past to the global future（图）
Connecting the prehistoric past to the global future
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2020/1/21
In seeking to understand factors that affect global biodiversity patterns, scientists have focused much of their research on present-day climate, such as patterns of temperature or rainfall, or recent...
How many parasites can a bird carry?（图）
parasites bird carry
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2020/1/21
A breakthrough by ecologists at the Scripps Institution of Oceanography has implications for multiple fields of biology.Ecologist Ryan Hechinger and colleagues tested a new way to predict the parasite...
How mantis shrimp make sense of the world（图）
mantis shrimp sense world
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2019/12/6
A new, NSF-supported study published in the Journal of Comparative Neurology provides insight into how the small brains of mantis shrimp -- fierce predators with keen vision -- may process and integr...
气候变暖可能会导致帝企鹅灭绝
气候变暖 企鹅家族 全球气候模型 海鸟生态学家
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2022/3/7
美国一项新研究发现，如果不及时采取行动遏制气候变暖的趋势，现存企鹅家族中体形最大的成员——帝企鹅将在本世纪末灭绝。研究结果近日发表在生态环境科学期刊《全球变化生物学》上。
科学家利用单细胞基因振荡器检测到哺乳动物肠道中的细菌变异性
科学家 单细胞基因振荡器 哺乳动物肠道 细菌变异性
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2019/11/13
近日，美国哈佛医学院科研人员在Nature Communications上发表了题为“Bacterial variability in the mammalian gut captured by a single-cell synthetic oscillator”的文章，利用单细胞基因振荡器检测到哺乳动物肠道中的细菌变异性。
近日，以色列魏兹曼科学研究所科研人员在Nature上发表了题为“Cyclic GMP–AMP signalling protects bacteria against viral infection”的文章，发现某些细菌具有与动物天然免疫的核心组成部分——cGAS–STING通路相关的抗病毒机制，揭示了这种重要的动物抗病毒防御系统可能起源于细菌。
Survey completeness of a global citizen-science database of bird occurrence（图）
Survey completeness global citizen-science database bird occurrence
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2019/10/28
There are many shortfalls in knowledge of the world's biodiversity, and one of the most basic is the lack of knowledge about where species occur geographically. This deficiency has broad ramifications...